Jevan Michael, Shella Koirun Nisa, Serina Muslimah, & Jazilatul Wafiroh. (2025). PERFORMA SAHAM OPERATOR SELULER DI LQ45: ANALISIS EXPECTED RETURN DAN STANDAR DEVIASI PADA SAHAM TLKM, EXCL, DAN ISAT. IJESM Indonesian Journal of Economics and Strategic Management, 3(1). https://doi.org/10.69718/ijesm.v3i1.398